Why some customers need make water test on screw conveyors ? Because it can check whehter the sealing is good or not . Sometimes it also check the pressure inside screw trough.
How to make the water test ?
First , make some blind plates to seal the outlet and other discharging nozzles.
Second, check the sealing on both end plates are assembled well .
Third, fill water inside the screw trough. Pay attention to the screw shaft shall be swallowed by the water.
At last, if there no water come out from the sealing parts, the water test is ok.
From this photo ,you can find some water inside the screw trough ,but no water leakage from the end plate.